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Finding the Fourth Proportional to 199,314.60, 275,043.78 and 123,861.48

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Solution

The fourth proportional to 199,314.60, 275,043.78 and 123,861.48 is: 170,922.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,314.60 : 275,043.78 = 123,861.48 : x
  2. Step 2: Convert to fraction form
    199,314.60/275,043.78 = 123,861.48/x
  3. Step 3: Cross multiply
    199,314.60x = 275,043.78 × 123,861.48
  4. Step 4: Simplify right side
    199,314.60x = 34,067,329,655.59
  5. Step 5: Solve for x
    x = 34,067,329,655.59/199,314.60
  6. Step 6: Final answer
    x = 170,922.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.